37results about How to "High overlap" patented technology

The invention proposes a heat and cool power cogeneration system of an integrated multi-functional efficient mini-type gas turbine, which belongs to the novel heat and cool power cogeneration system device. To solve the frequent mismatching of cold and heat load and low efficiency operation of the conventional cogeneration system, measures such as steam reinjection, inlet gas cooling, gas fume and condensate water recovery are introduced on the basis of the heat and cool power cogeneration system of the mini-type gas turbine; in addition, the number of steam outlets and hot-water outlets is increased, thus forming the heat and cool power cogeneration system of the integrated multi-functional efficient mini-type gas turbine. The system is provided with various operation modes suitable for different occasions, can effectively solve the problem of mismatching of cold and heat load of the cogeneration system, so that the system can keep working in highly efficient mode.

A high power pulsed laser having a Q-switched seed laser lasing at a preselected wavelength at TEM₀₀ mode to produce a pulsed seed beam is disclosed. One or more substantially non-depolarizing optical amplifier media namely Nd:YVO₄ or Nd:GVO₄ crystals are used in optical communication with the seed laser. The optical amplifier media has a stimulated emission spectrum overlapping the preselected wavelength. A pumping source is provided in optical communication with the optical amplifier media to supply 15 watt or more of pumping power to excite the amplifier media and amplify the pulsed seed beam. The resulting laser produces 15 watts or greater of output power at the preselected wavelength. A temperature controller is desirably provided to regulate the temperature of the optical amplifier medium within a preselected range selected to enhance the amplification of the seed beam by increasing the degree of overlap between the stimulated emission spectrum and the seed beam wavelength.

The invention provides an ultraviolet light emitting diode epitaxial wafer and a manufacturing method thereof, which belong to the technical field of semiconductors. The ultraviolet light emitting diode epitaxial wafer comprises a substrate, a buffer layer, an undoped AlGaN layer, an N-type layer, an active layer and a P-type layer, the buffer layer, the undoped AlGaN layer, the N-type layer, theactive layer and the P-type layer are sequentially stacked on the substrate, the active layer comprises a plurality of quantum well layers and quantum barrier layers which alternately grow periodically, the quantum well layers are Si-doped AlxGa1-xN layers, x is greater than 0 but smaller than 0.4, thequantum barrier layer is Mg-dopedAlyGa1-yN layer, and y is greater than 0.5 but smaller than 0.7.The ultraviolet light emitting diode epitaxial wafer can effectively shield a built-in electric field generated by a polarization effect in the quantum well layer, so that the wave function overlapping rate of electrons and holes can be improved, the radiation recombination efficiency of the electrons and the holes can be improved, and finally the internal quantum efficiency of the ultraviolet light-emitting diode is improved.

The invention discloses a gain optical fiber for outputting specific single-mode lasers. The gain optical fiber comprises a fiber core, a wrapping layer and a coating layer, wherein the fiber core, the wrapping layer and the coating layer are sequentially arranged from inside to outside. A rare earth ion doping area is contained in the fiber core of the gain optical fiber, a corresponding relationship exists between a distribution area of the rare earth ion doping area in the fiber core and light strength distribution of the specific single-mode lasers output by the gain optical fiber in advance, and the corresponding relationship refers that an area scope of distribution of the rare earth ion doping area in the fiber core is an area scope of I>(1/2)Imax in the light strength distribution of the specific single-mode lasers in the fiber core, wherein the I is the light strength of the specific single-mode lasers at any point in the fiber core, the Imax is the maximum value of the light strength, and the number of the Imax is larger than or equal to one. The gain optical fiber can achieve fundamental mode output of an optical fiber laser, can further achieve output of a specific single high-order mode of the optical fiber laser, and has actual guiding significance on mode control of the optical fiber laser.

The invention discloses a massage chair with multiple massage movements for achieving staggered slippage massage. The massage chair comprises a left edge-on armrest plate, a right edge-on armrest plate and a sitting and lying integrated guiding track bracket wherein the left edge-on armrest plate and the right edge-on armrest plate are arranged in a spaced mode, the guiding track bracket is connected between the two armrest plates, the guiding track bracket is provided with two track plates which are arranged in parallel in a spaced mode along the curve of the neck, the back and the thighs of the human body, the top ends of the two track plates are fixedly connected through a neck supporting plate, at least two massage movements are arranged between the inner side faces of the two track plates in the sitting and lying direction in a layered mode, and each massage movement moves along a track of the corresponding layer height on the track plates for massaging the human body at the sitting and lying region; dual guide rails are adopted, different guide tracks are adopted for being matched with different movement structural modes, and the massage comfort level of the two movements is improved; due to the guiding tracks on the upper and lower layers, the stacked degree of the movements can be improved, and the stroke of the massage movements is increased; by adopting the two movements with different functions, the two movements can perform massage on the human body in various manipulations in the motion stacked massage region, and the massage comfort level is greatly improved.

An engine includes an in-cylinder injector injecting fuel into a cylinder, a port injector injecting fuel into an intake manifold, and a valve-opening-characteristic changing mechanism changing at least lift or opening duration of an intake valve. When the engine is in a predetermined operating region and the valve-opening-characteristic changing mechanism decreases the lift or the opening duration of the intake valve, the ratio of fuel injected by the in-cylinder injector is increased according to an amount of the decrease of the lift or the opening duration and accordingly a decrease in tumble ratio is compensated for by the injection flow.

It is a semi-conductor laser side pump solid ribbon laser, which is characterized by the following: the laser activation medium is laser solid ribbon of cuboid thin slice; the output pump light from semi-conductor laser pump is shaped into an one-dimensional parallel light of quadrate section; the light beam diameter of the pump light along thickness direction is less than half of the laser solid ribbon thickness; the pump light goes into the laser solid ribbon from the side of the solid ribbon; the laser solid ribbon dissipate heat from upper and down surfaces.

The invention discloses a neural problem generation method for improving correlation. The neural problem generation method for improving correlation comprises the steps: enabling a QG model based on seq2seq to be composed of an encoder layer and a decoder layer, and adding an attention mechanism and a copy mechanism; and providing a partial copy mechanism based on character overlapping. The method has the beneficial effects that through a partial copy mechanism based on the character overlap degree, the word level and the input document in the generated problem have higher overlap degree and correlation. Through a QA model-based reordering mechanism, higher scores can be given to the generated candidate questions with better quality, and the common questions difficult to answer can be filtered out.

This invention provides a turbine wheel apparatus and the gas flow measurement apparatus with the turbine wheel apparatus, which comprises shell, front flow guide apparatus, turbine wheel, fixed cover and rack assembly. Wherein, the front flow guide apparatus comprises flow guide body and its flange; the said turbine wheel comprises turbine wheel blade, turbine wheel center and is characterized by the intensely locating with multiple blades in the shape of inverse trapezium. Comparing with current technique, it can obviously restrain the separation turbo generation and reduce the pressure loss and is of high measurement sensitivity and reduces the loss caused by the gas flow friction and turbo in the ring channel surface at the minimal degree.

The invention provides a true radiographic image acquisition method, which comprises the following steps of: 1, establishing a digital surface model, and superposing a digital elevation model and a digital building model DBM to form the digital surface model required by ture radiographic image acquisition; 2, performing sight line analysis, and establishing a two-dimensional index matrix of the main image for recording the visibility of the main image; 3, according to a shielding detection algorithm, back-projecting all object space points in combination with internal and external orientationelements, judging whether the points are visible or not in combination with the states of the pixel points in the step 1, and further recording a detected shielding area; 4, because the sizes and theresolutions of the index map and the real image are the same, recording the positions of the shielding areas, projecting the shielding areas detected in the step 3 to the adjacent images except the main image, filling the invisible shielding area of the main image according to the index map, and reparing the texture of the shielding areas; step 5, carrying out color consistency processing; and 6,carrying out image mosaic.

The invention relates to a mixed lure for main pests on tobacco, and a preparation method and use of the mixed lure. Based on four common lepidopterous noctuidae pests on tobacco: Spodoptera litura Fabricius, Helicoverpa armigera Hubner, Helicoverpa assulta Guenee, and Agrotis ypsilon Rottemberg, two or three of four sex pheromones and additives are chosen (those of Helicoverpa armigera Hubner, Helicoverpa assulta Guenee cannot be chosen simultaneously) and jointly loaded in the same lure in respective proportions. In this way, the limits of trapping different kinds of pests are broken throughand multiple kinds of pests can be trapped simultaneously, thereby reducing the labor and trap costs and improving the trapping effect. The invention discloses an insect pheromone mixed lure capableof simultaneously attracting a plurality of main pests on tobacco for the first time, realizing high-efficiency attraction of the main pests on tobacco.

The invention provides a light emitting diode epitaxial wafer and a manufacturing method thereof, which belong to the technical field of semiconductors. The light emitting diode epitaxial wafer comprises a substrate, and a low-temperature buffer layer, a high-temperature buffer layer, an N-type layer, an active layer and a P-type layer which are sequentially stacked on the substrate. The active layer comprises a first quantum well layers close to the N-type layer and b second quantum well layers close to the P-type layer, In components in the first quantum well layers are smaller than In components in the second quantum well layers, and the thickness of the first quantum well layers is larger than that of the second quantum well layers; in components in the a first quantum well layers areincreased layer by layer in the stacking direction of the epitaxial wafer, and the thicknesses of the a first quantum well layers are decreased layer by layer. According to the light emitting diode epitaxial wafer, the overlapping degree of wave functions of electrons and holes in spatial distribution can be increased, the energy band inclination phenomenon in the multi-quantum well layer is improved, and the internal quantum efficiency of an LED is improved.

The invention provides a video processing method and device, electronic equipment and a computer readable storage medium, and relates to the field of video processing. The method comprises the following steps: acquiring a plurality of pieces of first action fragment time information of video information based on the feature sequence extracted from the video information; sequentially determining atime starting point set and a time stopping point set of time information of each candidate action segment based on each feature in the feature sequence; determining a second time starting point corresponding to each piece of first action segment time information, and determining a second time stopping point corresponding to each piece of first action segment time information; and generating a plurality of pieces of corrected first action fragment time information by adopting the second time starting point and the second time stopping point. According to the method and the device, the action fragment time information of the human activities can be extracted from the unprocessed video.

The present invention belongs to the technical field of network analysis, and relates to a bridge node identification method based on the hypergraph entropy. A relatively stable triangle element is used to construct a super edge, and a super edge is used to represent the entire network. The algorithm is characterized in that: the hypergraph entropy, the Jaccard similarity coefficient, and other factors are considered in the algorithm; the hypergraph entropy provides a basis for measuring the quality of community division, and the hypergraph entropy takes into account the connection relationship inside the community and the connection relationship between the communities, wherein the smaller the hypergraph entropy is, the looser the connection relationship between the communities is, and the closer the connection relationship inside the community is, so that the community identification result is ideal; in the algorithm iteration process, when deleting or adding a "candidate super edge", whether to perform deletion or addition can be determined according to whether the hypergraph entropy can be reduced; the Jaccard similarity coefficient makes the identified similarity of communities not be too large, and when the similarity between two communities is greater than the average similarity, the two communities will be merged, so that community identification accuracy can be greatlyimproved; and finally, by identifying the intersection between the communities, the bridge nodes are obtained.

The invention provides a multi-rotor frequency-changing sand mixer and a sand mixing method. Due to the application of a multi-rotor cutter, the overlapping degree of stirring tracks of a material is improved; meanwhile, due to the application of a frequency-changing rotor speed adjusting technology, the mixing process meet change of physical characteristic of mixed sand, that is, the mixing process can be more conductive to uniform coating of an auxiliary material (bentonite) on sand particles in the presence of water, so that the influence of small particles formed by the bentonite due to incomplete mixing on the mixing quality of casting sand can be avoided. A frequency changer is capable of automatically adjusting the frequency of a motor in a range of 50HZ-30HZ under the control of a rotation speed-time program which is determined by an industrial personal computer in advance. The multi-rotor frequency-changing sand mixer and the sand mixing method provided by the invention have the characteristics of uniformity in mixing the sand, high efficiency of mixing the sand and low energy consumption.